jQuery: slow 'Webkit' performance - function .hover

Hey. I'm trying to get this script to work smoothly in webkit (Safari, Chrome, newest versions). It runs absolutely fine in Firefox. This code is called in the document.ready function:

$('#noScript').remove();  
$("#content div.wrapper, #top div.wrapper").hide().stop().fadeIn({duration: 2000, queue: true });

$('#social a')
.children('span').hide()
.next('img').css('opacity', '0.4')
.parent().hover(function(){
    $(this).children('img').animate({ opacity : 0.99}, {duration: 100, queue: false })
    .prev('span').fadeIn({duration: 200, queue: false });
}, function(){
    $(this).children('img').stop().css({ opacity : 0.4})
    .prev('span').hide();
});

$('#language').css({opacity: '0.5'}).hover(function() { 
    $(this).animate({ opacity : 0.99}, {duration: 'fast', queue: false }) 
}, function(){ 
    $(this).animate({ op开发者_如何学Pythonacity : 0.5}, {duration: 'fast', queue: false }); 
});

Hovering over the selected items triggers an awfully slow animation. You can see a live example here: trinkaus.cc

Does anyone have any clue why this happens? Kind regards Sascha

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It seems to be fine in Google Chrome 6.0.472.63 and IE 8, not had a chance to test it in Safari. Maybe clear your cache or something?

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Wow, I think I have to answer my own question. The inset shadow on the #top div is the cause of the JS performance.